Emery-wheel and support



O. L. HYDE. WHEEL D PBGRT. No. 507,223. Patented Oct. 24, 1893.

U ITED STATES PATENT OFFICE.

CLARENCE L. HYDE, OF CHICAGO, ILLINOIS.

EM ERY-WH EEL AND SUPPORT.

SPECIFICATION forming part of Letters Patent No. 507,223, dated October24, 1893.

Application filed April 19, 1892. Serial No. 429,747. (No model.)

To all whom it may concern.-

Be it known that I, CLARENCE L. HYDE, a citizen of the United States,and a resident of Chicago, in the county of Cook and State ofIllinois,have invented new and useful Improvements in Emery-Wheels andSupports, of which the following is a specification, reference being hadto the accompanying drawings, illustrating the invention, in whichFigure 1 is a vertical central sectional elevation of an emery wheel andsupports, in which is embodied my invention. Fig. 2 isa side elevationof half of the wheel and half of one support removed from the otherportions; Fig. 3, a detail and modification of the construction atFig. 1. Fig. 4 is a section of a portion of the wheel at Fig. l enlargedto double size; Fig. 5, an elevation of one internal washer removed fromthe other parts.

This invention relates to the construction of an emery wheel andclamping supports; whereby the wheel is prevented from bursting bycentrifugal force engendered by Velocity.

The novelty of the invention will be fully comprehended by reference tothe following detail description.

A represents the emery wheel whose sides are parallel, except there areformed on the opposite portions of its flat sides at a distance from theeye, substantially as shown, two or more beads, or outwardly projectingannular rings B and C, each of which at Fig. 1 is semi-circular incross-section, but a modified form is shown at J. J. Fig. 3, the samebeing V-shaped. The purpose of these annular projections is to engageclamping plates H. H. which are constructed as follows: Metal plates,preferably of steel, are cut in annular form and the marginal portions Iare curved or bent to engage the outer surface of the beads, orprojections B. J. from the eye of the Wheel as shown at Figs. 1 and 3.When struck up, the surface of the plates H. H. are formed substantiallyfiat, except the curved portions mentioned, but when the plates aresecured to the emery Wheel the middle portion of the outsides of theplates are forced in, in dishedor concave form, in order that saidcurved portions I, may be brought with considerable force onto thebeads, or projections 13 or J. By this means the wheel is prevented frombursting, by a positive force on both sides of the wheel; and the forcetends to act toward the eye of the wheel, and thereby the centrifugalforce of the wheel is largely counteracted by the clamping force of saidplates. In order that the plates may, at their middle portions, be setin as stated, the beads C have less projection outward from the fiatside of the wheel than the beads B, as shown in Fig. 1. Fig. 1 is drawnhalf the size of a sixteeninch emery wheel, Fig. at being a portion of awheel of the latter size. In practice, I use only one set of clampingplates on the wheel at a time; and when the wheel is worn down near tothe curves 1, the plates are to be removed and substituted by likeplates,but of such diameters that their curved portions will engage thebeads C in the same manner that the plates engage the beads B. In thisconstruction, the central portions of the plates do not come in contactwith the emery wheel, but a suitable metal washer D is placed betweeneach plate and the wheel, and by means of the ordinary fixed collar L,collar F and the jam nut G, the wheel A, washers D and plates H are soclosely clamped together near to the eye of the wheel that the wheel isheld fast to rotate with the shaft E. In this construc tion, the washersD are made thicker at their peripheries than at their eye portions tocorrespond to the dish of the plates H; that the pressure on the washersmay be substantially equal throughout their surface. To avoid makingdifferent thicknesses of washers, as in some cases might be required,packing- Washers of paper or other suitable material may be employed ofa thickness, or more, as shown at- K,Fig. 3. For a sixteen-inch wheel,steel clamping plates one-fourth of an inch each thick are found toserve a good purpose and prevent the wheel from bursting, when thesurface of the wheel travels a mile and a half per minute.

I am aware that several devices have been heretofore employed to supportemery wheels. I therefore limit my invention to the elements andcombinations set forth in the following claim.

I claim as new and desire to secure by Letters Patent of the UnitedStates- In combination, the emery wheel having the annular beadsprojecting laterally from 5 its sides and forming annular free spacesabout the sides of the wheel and the clamping plates having flangesadapted to bear on the rib with its body portion extending over the freespaces to be sprung toward the side of the wheel and the clamping meanswhere to by the wheel will be pressed inwardly toward its center,substantially as described.

CLARENCE L. HYDE. Witnesses:

G. L. CHAPIN, ELLIS S. CHESBROUGH.

